Improvement in canal-lock valves



N. PETERS. PHOTO LITHOGRAPNE UNITED STATES PATENT OFFICE.

GEORGE HEATH, OF LITTLE FALLS, NEW YORK.

IMPROVEMENT IN CANAL-LOCK VALVES.

Specification forming part of Letters Patent No.1 13,661, dated Aprll11, 1871.

To all whom t may concern Be it known that I, GEORGE HEATH, of LittleFalls, in the county of Herkimer and State of New York, have inventedcertain new and useful Improvements in Canal-Lock Valves or Wickets; anddo hereby declare the following to be a full, clear, and exactdescription thereof, reference being had to the accompanying drawingsand to the letters of reference marked thereon.

My present invention is intended as an improvement upon the canal-lockvalve for which Letters Patent were granted to me July l, 1862; and itconsists in theA addition of a beveled or inclined piece on one side ofthe gate, or in making the gate itself of such inclined or beveledforni; and also in making the distance from its journals to the loweredge somewhat longer than to the upper edge, whereby the gate will bethe more easily operated.

In order to enable others skilled in the art to which my inventionappertains to make and use the same, I will now proceed to describe itsconstruction and operation, referring to the annexed drawings, whichform a part of this specification, and in which- Figure l is a'plan viewof the valve in section. Fig. 2 is an end section of theframe. Fig. 3 isa transverse section, showing the valve in position; and Fig. 4 is aperspective view of the valve with its attachments.

A represents the wood-Work of the valve.

B B are the iron heads, which traverse the ends, and C C the iron edgesor seat. a is the rectangular frame, with bearings b to support thewhole apparatus, in which are the journals c. In the frame a arerabbeted cleats C', which forni the valve-seats, as shown in Fig. 2. Lis a projecting elbow, to which the operatingrod is attached for openingand closing. The bearing edges or seats C O are struck from the centerof the valve by beveling, and when the valve is used in a horizontalposition the lower half must be the longer and governed in its greaterlength by the head of water under which it is operated. Besides this, aninclined or wedge-shaped piece, E, is attached to the upper part of thegate or valve, whereby the water, instead of resisting the operation ofthe valve, will assist in its working and facilitate the same.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

The valve A, hung upon journals c c, the distance from said journals tothe lower edge being greater than to the upper, and the valve providedwith the piece E, substantially as and for the purposes herein setforth.

GEO. HEATH.

Witnesses:

M. R. GAsLER, F. J. QUINN.

